I am running version 05.06.03 (45) of DNN.

I recently upgraded my site to the v6.0.0 of the links module. Now, when I log in as the portal admin and click on the "Add Link" icon, a empty page displays with the message "An Error has occurred. Error is currently unavailable"

Even if I add a new instance of the links module to the page, I get the same error when I try to add a link. I also get the error if I try to edit an existing link.

Any idas?

Thanks in advance,

Dave

Here is the error in the Event Viewer

7/18/2011 5:29:36 PM   Module Load Exception   adm     ModuleId: 580; ModuleDefId: 126; FriendlyName ...

ModuleId: 580 ModuleDefId: 126 FriendlyName:  ModuleControlSource: DesktopModules/Links/EditLinks.ascx AssemblyVersion: 5.6.3 PortalID: 5 PortalName: LSSC Technology Support Website UserID: 9 UserName: adm ActiveTabID: 172 ActiveTabName: Documents RawURL: /Documents/tabid/172/ctl/Edit/mid/580/Default.aspx AbsoluteURL: /Default.aspx AbsoluteURLReferrer: http://support.lssc.k12.in.us/Documents.aspx UserAgent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; InfoPath.2) DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider ExceptionGUID: b4a8c587-2e43-40f3-9aa5-31239e12e18a InnerException: C:\Websites\LSSCSupport\DesktopModules\Links\EditLinks.ascx.vb(374): error BC30002: Type 'Net.WebException' is not defined. FileName:  FileLineNumber: 0 FileColumnNumber: 0 Method: System.Web.Compilation.BuildManager.CompileWebFile StackTrace:  Message: DotNetNuke.Services.Exceptions.ModuleLoadException: C:\Websites\LSSCSupport\DesktopModules\Links\EditLinks.ascx.vb(374): error BC30002: Type 'Net.WebException' is not defined. ---> System.Web.HttpCompileException: C:\Websites\LSSCSupport\DesktopModules\Links\EditLinks.ascx.vb(374): error BC30002: Type 'Net.WebException' is not defined. at System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath) at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.UI.TemplateControl.LoadControl(VirtualPath virtualPath) at DotNetNuke.UI.ControlUtilities.LoadControl[T](TemplateControl containerControl, String ControlSrc) at DotNetNuke.UI.Modules.ModuleHost.LoadModuleControl() --- End of inner exception stack trace --- Source:  Server Name: LSSC-WEB

And also this error was listed before the one above...

7/18/2011 5:19:25 PM   Page Load Exception   adm     AssemblyVersion: -1; PortalID: -1; PortalName ...

AssemblyVersion: -1 PortalID: -1 PortalName:  UserID: -1 UserName:  ActiveTabID: -1 ActiveTabName:  RawURL:  AbsoluteURL:  AbsoluteURLReferrer:  UserAgent:  DefaultDataProvider:  ExceptionGUID:  InnerException: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster. FileName:  FileLineNumber: -1 FileColumnNumber: -1 Method:  StackTrace:  Message: DotNetNuke.Services.Exceptions.PageLoadException: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster. ---> System.Web.HttpException: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster. ---> System.Web.UI.ViewStateException: Invalid viewstate. Client IP: 10.10.8.54 Port: 51526 User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; InfoPath.2) ViewState: 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... --- End of inner exception stack trace --- at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidati ) at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) at System.Web.UI.Util.DeserializeWithAssert(IStateFormatter formatter, String serializedState) at System.Web.UI.HiddenFieldPageStatePersister.Load() at System.Web.UI.Page.LoadPageStateFromPersistenceMedium() at System.Web.UI.Page.LoadAllState() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace --- Source:  Server Name: LSSC-WEB

In an attempt to resolve the issue, I performed the following;

1. Backed up the DNN database
2. Logged in as Host and removed the Links v6.00.00 from the module definitions. I checked the box to delete files.
3. I installed the latest Links module v6.00.01 from dnnlinks.codeplex.com as one the the fixes referred to the Net.WebException issue
4. I restored the database

Now, when I log in and click on Add a new Link or Edit a Link, I get the following message;

Error: is currently unavailable.
DotNetNuke.Services.Exceptions.ModuleLoadException: C:\Websites\LSSCSupport\DesktopModules\Links\EditLinks.ascx.vb(374): error BC30002: Type 'Net.WebException' is not defined. ---> System.Web.HttpCompileException: C:\Websites\LSSCSupport\DesktopModules\Links\EditLinks.ascx.vb(374): error BC30002: Type 'Net.WebException' is not defined. at System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath) at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.UI.TemplateControl.LoadControl(VirtualPath virtualPath) at DotNetNuke.UI.ControlUtilities.LoadControl[T](TemplateControl containerControl, String ControlSrc) at DotNetNuke.UI.Modules.ModuleHost.LoadModuleControl() --- End of inner exception stack trace ---